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Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 40, # 5.2 p. 1090 - 1092
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , vol. 40, # 5 p. 1212 - 1214

Zav'yalov, S. I.; Zavozin, A. G.; Kravchenko, N. E.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1991 , vol. 40, # 5.2 p. 1090 - 1092
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1991 , vol. 40, # 5 p. 1212 - 1214